I've had my Macbook Pro 13" for little over a year now, when I bought the thing it was claimed I could get 10 hours battery which is perfect for what I need (uni). At this moment in time its running the latest Lion 10.7.1, its stock so 4GB ram, 2.4ghz blah blah blah. This morning (like everyday) I take it off charge, instantly it was at 99% battery. I've used it now for *checks iStat Pro* 1 hour and 58 minutes and I'm down to 18% battery . All I do is surf the web, a little iTunes and thats about it. Whenever Im on a site that requires flash the fan kicks into turbo mode (sounds like a jet engine) and the battery percentage turns into like a ticking timer "76%, 75%, 74%" so I have to come off these sites so save battery. The heat is unbelievable on it that Im considering using it to cook my breakfast on. I've used those "Click for flash" programs but they dont work so well, I calibrate the battery a couple times a week, according to iStats the health of my battery is at 88%. I have to charge it about 2 or 3 times a day, Im trying to be as energy efficient as possible with the battery but it's becoming a joke now! Also quickly I took my mac back a few months ago about a dodgy speaker and the poor battery, they replaced the speaker and battery and things were fine for a wee while but things are just back to square one, I can't listen to anything because the left speaker cracks, and when I do anything its only for 5 minutes until the battery dies To sum up -RUBBISH battery -Hot hot hot mac -Fan on constantly -Speaker keeps crackling Anyone with any advice would be my new best friend!!